体てい裁さいぶる

godan verb (-ru), intransitive verb

put on airs; act pretentiously; be concerned with appearances

Rare term. Describes someone who is overly concerned with keeping up appearances or acting in a pretentious manner. Often used in negative contexts to criticize affected behavior.

• 彼かれは体てい裁さいぶって、高こう級きゅうなレストランにばかり行いきたがる。

  He puts on airs and always wants to go to fancy restaurants.

• 体てい裁さいぶらずに、ありのままの自じ分ぶんを見みせればいい。

  You should just be yourself without worrying about appearances.